Question

我与DoctorProfile和Insurance有很多关系。我想从客户端应用程序的表单创建这些关联。我正在发送一个doctor_insurances_ids数组并试图在一行中创建关联。是否可以发送回doctor_insurances ID数组？如果是这样，那么在params中为大规模分配命名它的正确方法是什么？

我使用以下代码获得的错误是

ActiveRecord::UnknownAttributeError: unknown attribute 'doctor_insurances_ids' for DoctorProfile.

class DoctorProfile
  has_many :doctor_insurances
  accepts_nested_attributes_for :doctor_insurances # not sure if needed

class Insurance < ActiveRecord::Base
  has_many :doctor_insurances

class DoctorInsurance < ActiveRecord::Base
  # only fields are `doctor_profile_id` and `insurance_id`
  belongs_to :doctor_profile
  belongs_to :insurance

def create
  params = {"first_name"=>"steve",
 "last_name"=>"johanson",
 "email"=>"steve@ymail.com",
 "password_digest"=>"password",
 "specialty_id"=>262,
 "doctor_insurances_ids"=>["44", "47"]}

  DoctorProfile.create(params)

end

Answer 1

您没有在您的医生档案中加入doctor_insurance_id，因此您的DoctorProfile.create（params）行无效。你可以这样做：

def create
  doctor = DoctorProfile.create(doctor_profile_params)
  params["doctor_insurances_ids"].each do |x|
    DoctorInsurance.create(doctor_profile_id: doctor.id, insurance_id: x)
  end
end

def doctor_profile_params
  params.require(:doctor_profile).permit(:first_name, :last_name, :email, :password_digest, :specialty_id)
end

Rails 4创建具有嵌套属性的模型has_many

1 个答案: